flowchart TB
    subgraph Foundation["RadonDB Foundation"]
        radon["radondb/radon<br/><i>Distributed SQL</i>"]
        xenon["radondb/xenon<br/><i>MySQL HA / Raft</i>"]
    end

    subgraph Kernel["Kernel Track"]
        mysql["MySQL Kernel"]
        neosql["sealdb/neosql<br/><i>Enterprise · Columnar · HTAP</i>"]
    end

    subgraph SealDB["SealDB Enhancements"]
        neodb["sealdb/neodb<br/><i>Distributed Txn · Consistency</i>"]
        neoha["sealdb/neoha<br/><i>MySQL + PG HA · Raft / etcd</i>"]
    end

    sealdb["sealdb/sealdb<br/><b>Unified Platform</b><br/><i>OLTP + OLAP · Storage-Compute Separation</i>"]

    mysql --> neosql
    radon -->|"enhance"| neodb
    xenon -->|"enhance"| neoha
    neosql --> sealdb
    neodb --> sealdb
    neoha --> sealdb

    style sealdb fill:#1a1a2e,stroke:#fe428e,stroke-width:2px,color:#fff
    style neosql fill:#16213e,stroke:#4ecca3,color:#fff
    style neodb fill:#16213e,stroke:#4ecca3,color:#fff
    style neoha fill:#16213e,stroke:#4ecca3,color:#fff